<script setup lang="ts">
import { ref } from 'vue';

// 1. 定义属性接收父组件传值
defineProps<{
  orderId: string,
  amount: number
}>()

const emit = defineEmits<{
  (e: 'close'): void
  (e: 'confirm', index: number): void
}>()


const paymentPopup = ref()

const open = ()=>{
  paymentPopup.value.open()
}
const close = ()=>{
  paymentPopup.value.close()
}

// 3. 处理选择支付渠道
const paymentMethod = ref()
// 支付渠道（方式）
const paymentChannel = [
  {
    title: '微信支付',
    thumb: '/static/images/wechatpay-icon.png',
  },
  {
    title: '支付宝支付',
    thumb: '/static/images/alipay-icon.png',
  },
]

const changePayment = (index: number)=>{  
  paymentMethod.value = index
}


// 2. 把方法暴露出去给外部使用
defineExpose({
  open,
  close
})

</script>

<template>
  <uni-popup :is-mask-click="false" ref="paymentPopup" type="bottom" @maskClick="emit('close')">
    <view class="payment-container">
      <view class="payment-header">
        <text class="title">选择支付方式</text>
        <uni-icons class="uni-icons-close" size="18" color="#333" type="closeempty" @click="emit('close')" />
      </view>
      <view class="order-amount">¥ {{ amount.toFixed(2) }} </view>
      <uni-list :border="false">
        <uni-list-item clickable v-for="(item, index) in paymentChannel" :key="index" :title="item.title"
          :thumb="item.thumb" @click="changePayment(index)">
          <template #footer>
            <uni-icons v-if="paymentMethod === index" size="26" color="#16C2A3" type="checkbox-filled" />
            <uni-icons v-else size="26" color="#d1d1d1" type="circle" />
          </template>
        </uni-list-item>
      </uni-list>
      <button class="uni-button" @click="emit('confirm', paymentMethod)">立即支付</button>
    </view>
  </uni-popup>
</template>

<style scoped  lang="scss">
.payment-container {
  min-height: 400rpx;
  border-radius: 30rpx 30rpx 0 0;
  background-color: #fff;
  padding: 10rpx 30rpx 40rpx;

  .payment-header {
    height: 88rpx;
    line-height: 88rpx;
    text-align: center;
    margin-bottom: 20rpx;
    font-size: 32rpx;
    color: #333;
    position: relative;
  }

  .uni-icons-close {
    position: absolute;
    top: 2rpx;
    right: 0;
  }

  .order-amount {
    padding: 10rpx 0 10rpx;
    text-align: center;
    font-size: 40rpx;
    color: #333;
  }

  :deep(.uni-list-item__container) {
    padding: 40rpx 0 !important;
  }

  :deep(.uni-list-item--hover) {
    background-color: #fff !important;
  }

  :deep(.uni-list-item__icon) {
    margin-right: 0;
  }

  .uni-button {
    margin-top: 40rpx;
  }
}
</style>
